Answer the question.Which one of the equations below matches the graph?

A. y = 4 cos(2x)
B. y = 4 cos
C. y = 4 sin
D. y = 2 cos


Answer: A

Mathematics

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Solve the problem.Find the area of the region in the first quadrant bounded by the line y = 8x, the line x = 1, the curve  and the x-axis.

A.
B. 6
C.
D.

Mathematics

Use Euler's method to calculate the first three approximations to the given initial value problem for the specified increment size. Round your results to four decimal places.y' = y - ex - 2, y(2) = 2, dx = 0.5

A. y1 = -2.0945, y2 = -10.4330, y3 = -25.6523 B. y1 = -1.2945, y2 = -8.8330, y3 = -25.3323 C. y1 = -0.8945, y2 = -8.0330, y3 = -25.1723 D. y1 = -1.6945, y2 = -9.6330, y3 = -25.4923

Mathematics

Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.

A. {(9, 3)} B. {(9, 4)} C. {(8, 4)} D. no solution; ?

Mathematics

Perform the exponentiation. 2

A.
B.  
C. - 
D. - 

Mathematics